Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Qingyou Han"'
Autor:
Honggang Zhong, Zenghuang Lin, Qingyou Han, Jiangfeng Song, Meicheng Chen, Xiangru Chen, Lijuan Li, Qijie Zhai
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 8, Pp 3431-3440 (2024)
Hot tearing is a serious destructive solidification defect of magnesium alloys and other casting metals. Quantitative and controllable measurements on the thermal and the mechanical behavior of an alloy during its solidification process are crucial f
Externí odkaz:
https://doaj.org/article/19d9012a911a40b0a496c4a93d7dd5ee
Publikováno v:
Materials & Design, Vol 239, Iss , Pp 112786- (2024)
This investigation delves into the intricacies of the process mechanism for generating a gradient nanostructured surface (GNS) layer on M50 bearing steel, with the aim of augmenting its surface hardness and wear resistance under elevated temperature.
Externí odkaz:
https://doaj.org/article/2e0e97e5deb64fb790540bec34ed9efd
Autor:
Honggang Zhong, Yu Zhao, Zenghuang Lin, Tianyu Li, Qingtao Guo, Lijuan Li, Qijie Zhai, Qingyou Han
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 5368-5371 (2023)
Dendritic bridging plays a key role in hot tearing formation and crack propagation, but it has yet to be clearly understood. This article describes the formation process of interdendritic bridging and its effect on the propagation of hot tearing. Two
Externí odkaz:
https://doaj.org/article/54896caf8e544bb49007fa24d00b5c59
Autor:
Honggang Zhong, Renjie Wang, Qingyou Han, Mengting Fang, Huazhi Yuan, Lingxi Song, Xin Xie, Qijie Zhai
Publikováno v:
Journal of Materials Research and Technology, Vol 20, Iss , Pp 3408-3419 (2022)
Central macrosegregation and coarse microstructure are the main defects in ingot castings of high alloy steels. Rapid cooling associated with continuous casting could be beneficial in improving the internal quality of ingot castings. This work evalua
Externí odkaz:
https://doaj.org/article/5a0505563ed743f7ac0850d87a930382
Autor:
Qingyou Han
Publikováno v:
Journal of Magnesium and Alloys, Vol 10, Iss 7, Pp 1846-1856 (2022)
The effect of solutes on grain formation has been studied over a century but is still under debating, simply because it is a very complex topic. This article focuses on the effect of dissolved solute on the growth, fragmentation of a dendrite and the
Externí odkaz:
https://doaj.org/article/d8aa331e255e4a3294275a0c51a812b5
Publikováno v:
Journal of Magnesium and Alloys, Vol 9, Iss 4, Pp 1187-1200 (2021)
A magnesium alloy AZ31 sheet was processed by ultrasonic shot peening treatment to fabricate a surface nanocrystalline, and a ball-on-disk dry sliding wear test was performed to evaluate the tribological behavior after treatment. The microstructure o
Externí odkaz:
https://doaj.org/article/df9564f61e8d4c3b8ee0667d2b71e5c6
Publikováno v:
Crystals, Vol 12, Iss 10, p 1421 (2022)
Under quasi-steady particle pushing conditions in an alloy, fresh liquid has to flow to the gap separating a particle and an advancing solid–liquid interface of a crystal to feed the volume change associated with the liquid–solid phase transforma
Externí odkaz:
https://doaj.org/article/b5d8f8acc44440b4b81aeedcb9b949dc
Autor:
Xiaogang Jian, Qingyou Han
Publikováno v:
China Foundry, Vol 10, Iss 2, Pp 118-123 (2013)
The modification of eutectic silicon is of general interest since fine eutectic silicon along with fine primary aluminum grains improves mechanical properties and ductilities. In this study, high intensity ultrasonic vibration was used to modify the
Externí odkaz:
https://doaj.org/article/5ace722ec0e04f29ae2730132a2b777e
Akademický článek
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Publikováno v:
Metallurgical and Materials Transactions B. 54:1483-1498
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deaa4e2319faf21330bcbbe058e5636d
https://doi.org/10.1007/s11663-023-02774-9
https://doi.org/10.1007/s11663-023-02774-9